Henry Spencer Ashbee seemed a prosperous and respectable Victorian gentleman. But his well-upholstered chambers in Gray's Inn concealed a shocking secret: a vast collection of erotica and pornography, thousands of volumes strong.

The Erotomaniac is a fascinating account of Victorian curiosity, repression and subverted desire. Acclaimed biographer Ian Gibson has created an engrossing portrait of Ashbee, which examines the evidence that Ashbee himself may have been the author of the most famous work of Victorian erotica, My Secret Life.